Interference is observed between two electromagnetic waves with intensities I1, I2. There is a small tilt angle between the waves so that bright and dark interference fringes are observed across the detector. It is observed that at the bright fringes (constructive interference) the intensity is 450 W m -2, and at the dark fringes (destructive interference) the intensity is 50 W m-2. Solve for I ₁ and I 2. The larger of I1, I2 is: W m2, and the smaller of I1, I2₂ is: Wm-2.

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Diffraction of light

In physics, the term diffraction is defined as the bending of light around the corners of the obstacle. As a light ray passes by an aperture, it bends around the edges or through slits, it spreads out through a narrow opening. The diffracted light will produce fringes of bright and dark or colored bands which are labeled as a diffraction pattern.